Affiliation:
1. Instituto Nacional de Tecnología Agropecuaria (INTA), Argentina
2. Instituto Nacional de Tecnología Agropecuaria, Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Argentina
3. Instituto Nacional de Tecnología Agropecuaria, Argentina
Abstract
Abstract The objective of this work was to identify, by molecular analysis, the species of the genus Helicoverpa in corn, soybean, and lucerne Bt and non-Bt crops, in central Argentina. A total of 1,343 carterpillars were analyzed by PCR-RFLP. Helicoverpa zea was the only species detected on non-Bt and on most Bt corn hybrids. The species H. gelotopoeon predominated on non-Bt soybean and on lucerne, and H. zea larvae occurred in low proportion. Bt soybean did not show Helicoverpa spp. infestations. The exotic H. armigera was not found, though adult moths of this species were light-trapped in a complementary sampling.
Subject
Agronomy and Crop Science,Animal Science and Zoology